Refractive outcomes and complications following angle supported, iris fixated, and posterior chamber phakic intraocular lenses bilensectomy

2020 ◽  
Vol 32 (1) ◽  
pp. 25-30
Author(s):  
Veronica Vargas ◽  
Jorge L. Alio
Keyword(s):  
Intraocular Lenses ◽  
Posterior Chamber ◽  
Refractive Outcomes ◽  
Phakic Intraocular Lenses

scholarly journals Atomic force microscopy comparative analysis of the surface roughness of two posterior chamber phakic intraocular lens models: ICL versus IPCL

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Juan Gros-Otero ◽  
Samira Ketabi ◽  
Rafael Cañones-Zafra ◽  
Montserrat Garcia-Gonzalez ◽  
Cesar Villa-Collar ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Atomic Force Microscopy ◽  
Intraocular Lenses ◽  
Posterior Chamber ◽  
Anterior Surface ◽  
Contact Mode ◽  
Force Microscopy ◽  
Atomic Force ◽  
Phakic Intraocular Lenses ◽  
Roughness Measurements

Abstract Background To compare the anterior surface roughness of two commercially available posterior chamber phakic intraocular lenses (IOLs) using atomic force microscopy (AFM). Methods Four phakic IOLs were used for this prospective, experimental study: two Visian ICL EVO+ V5 lenses and two iPCL 2.0 lenses. All of them were brand new, were not previously implanted in humans, were monofocal and had a dioptric power of − 12 diopters (D). The anterior surface roughness was assessed using a JPK NanoWizard II® atomic force microscope in contact mode immersed in liquid. Olympus OMCL-RC800PSA commercial silicon nitride cantilever tips were used. Anterior surface roughness measurements were made in 7 areas of 10 × 10 μm at 512 × 512 point resolution. The roughness was measured using the root-mean-square (RMS) value within the given regions. Results The mean of all anterior surface roughness measurements was 6.09 ± 1.33 nm (nm) in the Visian ICL EVO+ V5 and 3.49 ± 0.41 nm in the iPCL 2.0 (p = 0.001). Conclusion In the current study, we found a statistically significant smoother anterior surface in the iPCL 2.0 phakic intraocular lenses compared with the VISIAN ICL EVO+ V5 lenses when studied with atomic force microscopy.

Safety of posterior chamber phakic intraocular lenses for the correction of high myopia

Ophthalmology ◽  
2001 ◽  
Vol 108 (1) ◽  
pp. 90-99 ◽  
Author(s):  
Ignacio Jiménez-Alfaro ◽  
José M Benı́tez del Castillo ◽  
Julian Garcı́a-Feijoó ◽  
Javier G Gil de Bernabé ◽  
José M Serrano de la Iglesia
Keyword(s):  
High Myopia ◽  
Intraocular Lenses ◽  
Posterior Chamber ◽  
Phakic Intraocular Lenses

Posterior Chamber Phakic Intraocular Lenses to Correct High Myopia: A Comparative Study Between Staar and Adatomed Models

2001 ◽  
Vol 17 (1) ◽  
pp. 32-42 ◽  
Author(s):  
José L Menezo ◽  
Cristina Peris-Martínez ◽  
Angel Cisneros ◽  
Rafael Martínez-Costa
Keyword(s):  
Comparative Study ◽  
High Myopia ◽  
Intraocular Lenses ◽  
Posterior Chamber ◽  
Phakic Intraocular Lenses

scholarly journals Explantation of domestic models of posterior chamber phakic intraocular lenses in the development of subcapsular cataract in higly myopic patients: clinical features

2021 ◽  
Vol 14 (1) ◽  
pp. 61-64
Author(s):  
G. V. Sorokoletov ◽  
E. R. Tumanyan ◽  
A. N. Bessarabov ◽  
M. A. Soboleva
Keyword(s):  
Young Patients ◽  
Optical Power ◽  
Functional Results ◽  
Intraocular Lenses ◽  
Posterior Chamber ◽  
Corneal Incision ◽  
Irrigation Solution ◽  
Phakic Intraocular Lenses ◽  
Surgical Tactics

To date, the operation of choice in young patients with high myopia, is the implantation of posterior chamber phakic intraocular lenses (PIOL), provided that there are contraindications to keratorefractive interventions, However, in the late postoperative period, cataracts may occur, which requires the development of surgical tactics for lens explantation with simultaneous phacoemulsification of cataract (FEC) implementation.The purpose is to develop and analyze a method for removing a PIOL through a 2 mm corneal incision in subcapsular cataract cases.Material and methods. Posterior chamber domestic models of PIOL type RSK-1(3) and RSK-3 in 22 patients (37 eyes), implanted in the S.N. FEDOROV “EYE MICROSURGERY” clinic in 1994 – 2001 had to be removed due to the development of secondary cataracts. PIOL stayed in the eye 2 to 26 years (averagely 14.30 ± 1.30 yrs). In all cases, the P IOL was removed followed by FEC with implantation of a posterior chamber IOL. The optical power of the IOL was calculated mainly in such a way that the residual myopic refraction was 2.0–3.0 D.Results. The intraoperative condition of the anterior chamber was stable, the volume of irrigation fluid consumed was within 90–120 ml. No complications were detected in the early and late postoperative periods. The results of dynamic ophthalmological follow up of patients showed that visual acuity without correction and with correction after surgery averaged 0.2 ± 0.1 and 0.60 ± 0.15, respectively.Conclusion. The proposed method of explantation of domestic lenses of S.N. FEDOROV NMRC MNTK “EYE MICROSURGERY” shows that it enables a safe, simple removal of PIOL in the event of secondary subcapsular cataract, which allows achieving high clinical and functional results without overspending the irrigation solution.

Iris and ciliary body cysts and phakic intraocular lenses

2019 ◽  
Vol 30 (5) ◽  
pp. 974-977 ◽  
Author(s):  
AM Gharaibeh ◽  
I Liehneova ◽  
P Mojzis ◽  
P Ziak ◽  
Jorge L Alió
Keyword(s):  
Intraocular Lens ◽  
Intraocular Lenses ◽  
Posterior Chamber ◽  
Refractive Errors ◽  
Phakic Intraocular Lens ◽  
Lens Position ◽  
First Case ◽  
Lens Implantation ◽  
Phakic Intraocular Lenses ◽  
Iris Cyst

Phakic intraocular lenses are used to correct refractive errors. The procedure is predictable and potentially reversible. The procedure is not free of complications though. The occurrence of iris cyst after implantation of a phakic intraocular lens was not described previously in the literature. We describe two cases of iris cysts in the presence of a phakic intraocular lens; the first case describes a cyst which was not present prior to the anterior chamber phakic intraocular lens implantation. The second case describes a hidden iris cyst that affected the posterior chamber phakic intraocular lens position and lead to glaucoma.

Posterior chamber toric phakic intraocular lenses for myopic astigmatism: First experience in India

2012 ◽  
Vol 38 (9) ◽  
pp. 1583-1589 ◽  
Author(s):  
Rohini Pothireddy ◽  
Kasu Prasad Reddy ◽  
Sirisha Senthil ◽  
Harsha L. Rao
Keyword(s):  
Intraocular Lenses ◽  
Posterior Chamber ◽  
Phakic Intraocular Lenses ◽  
Myopic Astigmatism

scholarly journals Evaluation of the efficacy, safety, and stability of posterior chamber phakic intraocular lenses for correcting intractable myopic anisometropic amblyopia in a pediatric cohort

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Fathy Fawzy Morkos ◽  
Nader F. Fawzy ◽  
Mohamed El Bahrawy ◽  
Nada Fathy ◽  
Rania Serag Elkitkat
Keyword(s):  
Visual Acuity ◽  
Conventional Therapy ◽  
Case Series ◽  
Intraocular Lenses ◽  
Posterior Chamber ◽  
Anisometropic Amblyopia ◽  
Occlusion Therapy ◽  
Phakic Intraocular Lenses ◽  
Safety And Stability

Abstract Background Myopic anisometropic amblyopia in pediatrics is one of the most challenging clinical situations that can face an ophthalmologist. Conventional correction modalities for myopic anisometropia, using spectacles, contact lenses, and/or occlusion therapy, may not be suitable for some pediatric patients or for some ocular conditions. This may lead to the development of anisometropic amblyopia. The aim of the present study was to evaluate the visual and the refractive efficacy, safety, and stability of Posterior Chamber Phakic Intraocular Lenses (PC-pIOLs) for correcting myopic anisometropic amblyopia in a pediatric cohort. Methods This case series, prospective, interventional study was conducted at Watany Eye Hospital, Cairo, Egypt. It comprised children and teenagers with myopic anisometropic amblyopia and unsuccessful conventional therapy. After implantation of Intraocular Collamer Lenses “ICLs” (Visian ICL, Model V4c, STAAR Surgical, Monrovia, California, USA), postoperative follow-up visits were scheduled, with automated refraction and Pentacam imaging performed. Results The study enrolled 42 eyes of 42 patients. The age range was 3 to 18 years (mean ± SD = 10.74 years ±4.16). The mean preoperative spherical equivalent (SE) was − 12.85 D ± 2.74. The results declared a significant improvement in the postoperative Corrected Distance Visual Acuity “CDVA” (P value < 0.01) and SE (P value < 0.01). The efficacy index had a value of 1.18 ± 0.3 and the safety index was 1.09 ± 0.24. The follow-up visits had a mean ± SD of 14.67 months ±16.56 (range of 1 to 54 months). The results showed a refractive stability, with statistically insignificant improvements in the patients’ visual acuity and refractive status on evaluating the enrolled pediatrics during the follow-up visits compared to the first postoperative visits. No postoperative complications were encountered. Worthy of mention is that there was a significant (80%) non-compliance with the prescribed postoperative occlusion therapy. Conclusions The present study, with the longest reported follow-up range, declared the long-term efficacy, safety, and stability of Visian ICLs for correcting myopic anisometropic amblyopia in pediatrics. The reported non-compliance with occlusion therapy validates the early implantation of Visian ICLs in cases with failed conventional therapy to guard against anisometropic amblyopia.

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